Update back to release mode

dev_mode/package.json

@@ -201,7 +201,7 @@
       "url-parse",
       "xterm"
     ],
-    "version": "0.32.0.dev0",
+    "version": "0.31.0",
     "linkedPackages": {
       "@jupyterlab/application": "../packages/application",
       "@jupyterlab/application-extension": "../packages/application-extension",

jupyterlab/_version.py

@@ -1,2 +1,2 @@
-version_info = (0, 32, 0, 'dev0')
+version_info = (0, 31, 0)
 __version__ = ".".join(map(str, version_info))